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Debt - Unsecured Notes Payable (Details) - USD ($)	Jun. 30, 2025	Dec. 31, 2024	Oct. 01, 2022	Jun. 25, 2021	Jun. 10, 2021	Feb. 10, 2021
Debt Instrument
Total principal amount	$ 263,823,290
Unsecured notes payable, net	260,175,984
Unsecured notes payable
Debt Instrument
Total principal amount	123,500,000	$ 123,500,000
Unamortized issue discount	(613,327)	(902,312)
Unamortized purchase discount	(1,142,709)	(1,853,316)
Unamortized deferred financing costs	(217,696)	(320,272)
Unsecured notes payable, net	121,526,268	120,424,100
Unamortized purchase discount	$ 1,142,709	1,853,316
6.00% Senior Notes Due 2026 \| Unsecured notes payable
Debt Instrument
Fixed rate (as percent)	6.00%			6.00%	6.00%
Effective rate (as percent)	7.00%
Total principal amount	$ 85,125,000	85,125,000
7.00% Senior Notes Due 2026 \| Unsecured notes payable
Debt Instrument
Fixed rate (as percent)	7.00%					7.00%
Effective rate (as percent)	11.16%
Total principal amount	$ 38,375,000	$ 38,375,000
7.00% Senior Notes Due 2026 \| Unsecured notes payable \| Terra BDC
Debt Instrument
Fixed rate (as percent)			7.00%
Unamortized purchase discount			$ (4,600,000)
Unamortized purchase discount			$ 4,600,000